Inking device for typewriters



2 SHEETSSHEET 1 Filed March 17, 1948 INVENTOR ATTORNEY June 1952 E. CERCEAU 2,600,156

INKING DEVICE FOR TYPEWRITERS Filed March 17, 1948 2 SHEETSSHEET 2 ATTORNEY Patented June 10, 1952 UNITED STATES PATENT? OFFlCE Enrique Cerceau, Cordoba, Argentina Application March 17, 1948, Serial No. 15,409

The present invention is concerned with improvements in typewriters, and the chief object is to provide a typewriter with typeholders which are jointed at the ends of the corresponding supporting arms.

Another object of the present invention is to provide typeholders with means capable of bringing about the rotation of same, from an end position which corresponds to an inking, roller, to a second position corresponding to a cylinder or platen. I

A further object of the invention is to equip a typewriter with an inking roller divided into a plurality of sections, so that each section may rotate independently in the inside of a receptacle containing ink or similar marking fluid.

Other objects and advantages of the present invention will appear from the detailed description hereinafter set forth.

In order that the invention may be more clearlyunderstood there will now be described with reference to the accompanying drawings, a preferred embodiment thereof which is given by way of example only and not by way of limitation.

In the drawings:

Fig. 1 is a schematic representation of a machine including the inherent characteristics of the invention;

Fig. 2 illustrates a mechanism connected to one typeholder, which is shown in its two extreme positions;

Fig. 3 is a schematic representation of a typeholder in its lower final position, in which a type carried thereby lies in contact with an inking roller;

' Fig. 4 is a similar view of the typeholder in which it is shown in its upper position with a type lying in contact with the cylinder or platen, and

Fig. 5 is a section taken along line A-A of Fig. 3.

The machine, in its general construction and as shown in Fig. 1, is essentially constituted of the following means:

(a) Type elements associated with means arranged to bring about actuation of the same;

(b) Type-inking means;

() Cylinder or platen.

As illustrated in Figs. 2 to 5, the writing element is constituted by a typeholder I, which forms an integral part of a projection 2, by means of which the same is rotatably disposed at the bifurcated end 3 of an arm 4.

The projection 2 is pivoted on a pin which I passes through both arms of the bifurcated end 3,. and is provided with an opening 6 in which acts a trigger I, this latter having an integral i 2 I sliding member 8, conveniently located in a guide formed in the corresponding arm 4, as shown in Figs. 3to 5." v

Fig. 2 shows one method by means of which the arm 4 may be moved, in which said arm is pivoted at an intermediate point of its length on a pivot pin 9, which forms an integral part of the frame of the machine.

In turn, the said arm 4 has at the opposite end to the typeholder I, a slot ill in which is disposed a small stem I I, said stem being solid with projection I2 which forms an integral part of an arm [3, which is pivoted, at one of its ends, on a shaft 14, while at the opposite end is applied the key I 5 for the manual movement of the type.

0n pressing said key the arm 4 passes from the position represented by the full line in Fig. 2, to that indicated by the dotted line in the same figure, thus producing angular rotation of the typeholder around pin 5.

Said angular rotation is produced as a result When the sliding member 8 operates on the abutment I6, the typeholder I comes into contact with the platen, which has been indicated in Figs.

2 and 4 by the reference numeral 2 I.

As what is represented and described is'given as merely an explanatory example and not'by way of limitation it is evident that modifications of construction and detail may be introduced without departing from that which, as a characteristic, is claimed in the claims which follow this description. I claim':

r 1. In a typewriter having a rotatable platen and type arms oscillatable from a position of rest to a work position adjacent the platen, typeholders pivoted on the outer ends of the type arms for approximately degrees oscillation, an inking device adjacent the rest position of the type arms, a fixed abutment adjacent the rest position of the type arms, and means carried by the type arms and cooperating with the fixed abutment for swinging the typeh'olders into alignment with the type arms and into contact with theinking device as the type arms approach the rest position.

2. In a typewriter having a rotatable platen and type arms oscillatable from a position of rest to a work position adjacent the platen, typeholders pivoted on the outer ends of the type arms for approximately 90 degrees oscillation, an ink receptacle adjacent the rest position of the type arms, a partially exposed roller mounted in said ink receptacle, a fixed abutment adjacent the rest position of the type arms, and means carried by the type arms and cooperating with the fixed abutment for swinging the typeholders into alignment with the type arms and into con tact with said roller as the type arms approach the rest position.

3. In a typewriter having a rotatable platen and type arms oscillatable from a' position of rest to a work position adjacent the platen, typeholders pivoted on the outer ends of said type arms for approximately 90 degrees oscillation, a fixed abutment adjacent the'platen, a second fixed abutment adjacent the rest position of the type arms, an inking device adjacent the rest position of the type arms, and means carried by the typearms and cooperating with the first fixed abutment for swinging the-typeholders into a position at'right angles to the type arms as the latter approach the platen and cooperating with the second fixed abutment for swinging the typeholders into alignment with the type arms and into contact with the inking device as the type arms approach the rest position.

4. In a typewriter having a rotatable platen and type arms oscillatable from a position of rest to a work position adjacent the platen, typeholders pivoted on the outer ends of said type arms for approximately 90 degrees'of oscillation, a fixed abutment adjacent the platen, a second fixed abutment adjacent the rest position of the type arms, an ink receptacle adjacent the rest position of the type arms, apartially exposed roller mounted in said' ink receptacle, andmeans carried by the type arms and cooperating with the first; fixed abutment for swinging the typeholders to'a position at right anglesto the type arms as the-latterapproach the platen and cooperating with, thesecond fixed abutment for swinging the typeholders into alignment with the type arms and into contact with said roller as the type arms approach the -rest position. g

5. In a typewriter having a rotatable platen and type arms oscillatable from a; position of rest to aworkposition adjacent the platen, typeholders pivoted on theouter'ends of-"said type arms for approximately 90 degrees'oscillation, said typeholders each having a cam surface therein, a 'fixed abutment adjacent the platen,

and-slidable cam triggers in engagement with the cam surfaces in the typeholders and carried by the type arms and cooperating with "the fixed abutment for swingingthe typeholders into a position at right angles to the type'armsas the latter approach the platen. H

6. In a typewriter having a rotatable platen and type arms oscillatable from aposition of rest to a work position adjacent the platen, typeholders pivoted on the outer ends of the type arms for approximately 90 degrees oscillation, said typeholders each having a cam surface therein, an inking device adjacent the rest position of the type arms, a fixed abutment adjacent the rest position of the type arms, and slidable cam triggers carried by the type arms in engagement with the cam surfaces in the typeholders and cooperating with the fixed abutment for swinging the typeholders into alignment with the type arms and into. contact-with the inking 76 mounted in said ink receptacle, a fixed abutment adjacent the rest position of the type arms, and

slidable cam triggers carried by the type arms in engagement with the cam surfaces in the typeholders and cooperating with the fixed abutment for swinging the typeholders into alignment with the type arms and into contact with said roller as the type arms position.

8. In a typewriter having a rotatable platen and type arms oscillatable from a position of rest to a-work position adjacentthe platen, typeholders pivoted on the outer-ends of said type arms for approximately degrees oscillation, said typeholders each having a cam surface therein, a fixed abutment adjacent the platen, a second fixed abutment adjacent the rest position of the type arms, an inking device adjacent the rest position of the type arms, and slidable cam triggers carried by the type arms in engagement with the cam surfaces in the typeholders and cooperating with the first fixed abutment for swinging the typeholders to a position at right angles to the type arms as the latterapproach theplaten and'cooperating with the second fixed abutment for swinging the typeholders into alignment with the type arms and'i'nto contact withthe inking device as the type arms approach the rest position;

9. In a typewriter having a rotatable platen and type arms oscillatable from aposition of rest to a work position adjacent the platen, typeholders pivoted on the outer ends of said type arms for approximately 90 degrees oscillation, said typeholders each having a cam surface therein, a fixed abutment adjacent theplaten, a second fixed abutment adjacent the rest position of the type arms, an ink receptacle adjacent the restposition of the type arms, a partially exposed roller mounted in said ink receptacle; and slidable cam triggers carried by the type arms approach the rest in engagement with"the camsur'faces in the typeholders and cooperating. 'with the first fixed abutment for swinging the typeholders into a position at'right angles to the'type arms as the latter-approach'the pla'ten and cooperating with the second fixed abutment for swinging the typeholders into alignment with the type arms and into contact: with said roller as the type arms approach the rest position. I

ENRIQUii .CERCEAU.

Number Na'rne Date tomes "Elling ;'July '16, 1889 459,149 Steele Sept-8, 1891 0 707,882 Vink Aug. 26,1902 1,402,200 Winter'er "Jan. 3, 1922 

